That area/projection will remain the same on all bulbs(irrespective of brand or colour).The reflectors present in the headlight assembly reflects the light emitted from the bulb.. as the filaments of high beam & low beam lies one on top of the other..
BUT when it comes to HID (ie,Single xenon) the normal beam & HID beam filaments/components lie side by side, hence the projection/area change drastically & the intensity of light is the best & is most efficient(200%)..



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